Michael Wacha, Clayton Kershaw

St. Louis Cardinals starter Michael Wacha, left, will go up against Dodgers ace Clayton Kershaw in Game 6 of the National League Championship Series on Friday.

St. Louis Cardinals starter Michael Wacha, left, will go up against Dodgers ace Clayton Kershaw in Game 6 of the National League Championship Series on Friday. (Elsa Garrison; Dilip Vishwanat / Getty Images)

St. Louis Cardinals starter Michael Wacha, left, will go up against Dodgers ace Clayton Kershaw in Game 6 of the National League Championship Series on Friday.